title: Cellular expression and localization of estrogen receptor α and progesterone receptor mRNA in the bovine oviduct combining laser-assisted microdissection, quantitative PCR, and in situ hybridization.
abstract: The importance of using techniques that allow the study of pure populations of cells has been increasingly recognized. The authors used laser-assisted microdissection (LAM) in combination with quantitative real-time PCR (qPCR) to assess the relative expression of mRNAs encoding estrogen receptor α (ERα) and progesterone receptor (PR) in the different compartments of the bovine oviduct (epithelium, stroma, smooth muscle coat) during the follicular and mid-luteal phases of the estrus cycle. The localization of receptor mRNA was further studied using non-radioactive in situ hybridization (NISH). A special focus was on whether formalin fixation and paraffin embedding influence the quality and quantity of mRNA obtained from microdissected material. Distinct cyclic changes of the mRNA in the bovine oviduct were observed with elevated levels of PR mRNA transcripts in the epithelium and smooth muscle coat during the follicular phase. The expression of PR mRNA did not vary significantly in the stroma of the bovine oviduct during follicular and mid-luteal phases. In conclusion, the authors found that LAM with qPCR can precisely locate and accurately quantify mRNA expression in specific cell populations from formalin-fixed and paraffin-embedded oviductal tissue.
authors.affiliation: Institute for Tieranatomie II, Department of Veterinary Sciences, University of Munich, Veterinärstraße 13, D-80539 Munich, Germany. r.kenngott@anat.vetmed.uni-muenchen.de
authors.forename: Rebecca Anna-Maria
authors.initials: RA
authors.lastname: Kenngott
authors.forename: Margarete
authors.initials: M
authors.lastname: Vermehren
authors.forename: Ulrich
authors.initials: U
authors.lastname: Sauer
authors.forename: Katja
authors.initials: K
authors.lastname: Ebach
authors.forename: Fred
authors.initials: F
authors.lastname: Sinowatz
mesh_terms: D000818:Animals; D002417:Cattle; D004848:Epithelium / Q000378:metabolism; D047628:Estrogen Receptor alpha / Q000096:biosynthesis* / Q000235:genetics; D030762:Estrous Cycle; D005187:Fallopian Tubes / Q000378:metabolism*; D005260:Female; D017403:In Situ Hybridization; D007834:Lasers; D042282:Microdissection; D009130:Muscle, Smooth / Q000378:metabolism; D016133:Polymerase Chain Reaction; D012333:RNA, Messenger / Q000096:biosynthesis*; D011980:Receptors, Progesterone / Q000096:biosynthesis* / Q000235:genetics
chemical_list: D047628:Estrogen Receptor alpha; D012333:RNA, Messenger; D011980:Receptors, Progesterone